What the heck, another "what'll it run" thread
Sounds like your playing pretty smart, make a few passes and see how she does then you can adjust form there. With a ladder bar car you should be able to get all the traction you need I think if you look real close you can probably get a 29 inch tire under there which might help on the other end and allow more gear for a better 60 ft time. You might have to notch the front of the wheel well, but it should be do able without too much hassel and work, thats what I used to run on one of my old cars. 29x10.5 x15 worked very well, it was auto car with a 727 but it was a small block car.